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Posted to issues@arrow.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2019/09/12 14:18:00 UTC

[jira] [Updated] (ARROW-6549) [C++] Switch back to latest jemalloc 5.x

     [ https://issues.apache.org/jira/browse/ARROW-6549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-6549:
----------------------------------
    Labels: pull-request-available  (was: )

> [C++] Switch back to latest jemalloc 5.x
> ----------------------------------------
>
>                 Key: ARROW-6549
>                 URL: https://issues.apache.org/jira/browse/ARROW-6549
>             Project: Apache Arrow
>          Issue Type: Wish
>          Components: C++
>            Reporter: Antoine Pitrou
>            Priority: Major
>              Labels: pull-request-available
>
> In ARROW-6478, we switched back to jemallox 4.x to fix a large performance regression in micro-benchmarks which appeared when bumping the vendored jemalloc version to 5.2.0.
> Since then, the issue was [discussed|https://github.com/jemalloc/jemalloc/issues/1621] with the jemalloc maintainers and we found out that customizing some options allowed regaining all (or most) of the performance on micro-benchmarks with 5.2.x.



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